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As a promising technology, drones are broadening its scope into various applications such as agriculture, delivery, broadcast, leisure, rescue, and many more. When drones experience communication failure due to interference, non-line-of-sight, or jamming, a possible solution is spatial retreat to evacuate drones from the communication failure area. In this(More)
Generally in mobile devices, localization is a critical issue to provide various services. A common way to find location is to use GPS. However, GPS has several limitations such as its reliability. Especially in none line of sight (NLOS) situations such as indoor environment, GPS is unable to find location. This could be a serious issue for drone fleet(More)
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